Friction disk brake for automobiles and the like



E- L. PAGE Nov. 16, 1948.

2,454,084 FRICTION DISK BRAKE, FOR AUTOMOBILES AND THE LIKE Filed Sept. 13, 1946 2 Sheets-Sheet 1 Inventor Ida/(2rd Z. Pays,

E. L. PAGE 2,454,084 FRICTION DISK BRAKE FOR AUTOMOBILES AND THE LIKE 2 Sheets-Shqet 2 Filed Sept. 13. 1946 Inventor a 9 E Z Patented Nov. 16, 1948 its!) STATES. PATENT OFFICE FRICTION DISK BRAKE FOR AUTOMOBILES AND THE LIKE Edward L. Page, Flint, Mich. Application September 13, 1946, Serial No. 696,854

2 Claims.

The present invention relates to new and useful improvements in brakes for use under any conditions where a brake is required, and designed especially for use upon automobiles and other motor driven vehicles.

More specifically, the invention embodies the provision of a rotatable disc secured to the vehicle wheel and non-rotatable friction discs movable generally axially into and out of braking contact with the opposite sides of the rotating disc.

An important Object of the present invention is to provide a brake of this character which embodies exceptionally large braking surfaces and other braking characteristics which are more effective than the conventional brake of the drum and shoe type.

Another object of the invention. is to provide a brake mechanism which eliminates the use of springs on the inside of the brake housing and which involves the use or no working parts to get out of order or adjustments.

A still further object is to provide a device of this character of simple and practical construction, which is emcient :and reliable in use, relatively inexpensive to manufacture and install in operative position and which otherwise is well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which- Figure 1 is an edge elevational view of a vehicle wheel with parts broken away and shown in section Figure 2 is a perspective View of the rotating and non-rotating friction brake disc Figure 3 is a sectional view taken on a line 3-3 of Figure 1 Figure 4 is a sectional View taken on a line i -t of Figure 3, and

Figure 5 is an enlarged perspective View of the brake disc applying and releasing cam.

Referring now to the drawings in detail wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a vehicle wheel including a hub 6 secured to an axle l. The axle is enclosed in a housing 8 provided with a flange 9 to which an annular brake housing I0 is secured, one side of the brake housing being open. and with its open edge projecting into a channel I I formed at the peripheral edge of the plate 12 secured to 2 the hub 6 of the wheel, the plate [2 thus closing the open side of the housing In.

A rotary brake disc I3 of concavo-convex formation is splined to a hub sleeve 6a fixed to the hub 6. Inner and outer stationary friction discs [5 and I6, likewise of concave-convex formation are positioned at opposite sides of the disc l3, the central portion of the discs I5 and I6 being formed with bearings l! in which the hub sleeve 5a is rotatable, the discs l5 and i6 being slid-able relative to the disc It. The opposed inner surfaces of the stationary discs l5 and 16 are provided with brake lining material is of suitable construction.

The stationary discs l5 and I6 are provided at diametrically opposite edges with radially extending tongues l9 slidably received in transverse slots 29 of the flange 2! of the brake housing Ill, the tongues 89 projecting radially outwardly of the flange 2|.

Cam housings 22 are secured to the. periphery of the flange 2| enclosing the outer ends of the tongues l 9, the opposite side walls of the housing 22 having a shaft 23 journaled therein.

A pair of cams 24 are secured to the shaft 23 and are positioned radially outwardly with respect to the ends of the tongues 19, the cams being constructed in the form of a segment of a circle and formed with a laterally curved groove 25 in its curved edge receiving the ends of the tongues of the stationary discs for sliding the tongues l 9 toward each other upon a rotation of the shaft 23 in one direction to thus move the discs l5 and it into brake applying contact with the rotating disc 53 and for sliding the tongues away from each other upon a rotation of the shaft in an opposite direction to release the discs.

An arm 27 is attached to one end of the shaft 23 and to which one end of a brake rod 28 is pivotally attached for operation in the usual manner by a brake pedal (not shown).

I claim:

1. A brake for a rotating member comprising a disc secured to said member for rotation therewith, a pair of discs slidably mounted on said member at opposite sides of said rotatable disc, a stationary housing enclosing said discs and having a slot positioned transversely of the edges of the discs, tongues on the slida-ble discs projecting through said slot to secure the sliding discs against rotation, and cams rock-ably mounted on said housing and engaging the tongues to move said pair of discs into and out of braking contact with said rotatable disc.

. A vehicle brake comprising a. rotating 00ncavo-convex disc, a pair of stationary concavo- REFERENCES CITED convex disks slidably positioned at op osite sides The f l wi references are of record in the of the rotating disc, a, stationary housing for the fi Of this p tent: discs having a, slot extending transversely of the 5 UNITED STATES PATENTS edges of the discs, tongues on the edges of the stationary discs sliding in said slot, a shaft, jour- Number Name Date naled on the housing, and cams secured to the 1,506330 Haselmaier sept- 2, 1924 shaft and engaging the tongues to move the 1,324,332 Davidson 4 Sept- 22, 1931 stationary discs into and out, of braking contact 10 1,939,179 Versluis 1935 with the rotating disc.

EDWARD L. PAGE. 

